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6.6.3.3. CAV control (constant airflow)
The inverter is used to guarantee an specific constant air volume in the duct system, regardless of the filters
clogging state.
CAD-COMPACT units are equipped with EC motors. The motors have specific terminals for sending a regulation
signal to control fan speed (0-10V).
The 0V signal corresponds to the fan stop, while the 10V signal corresponds to the maximum fan speed.
To perform speed regulation in pressure or constant airflow mode, it is necessary to use the CONTROL AERO-REG
accessory and the corresponding external TDP-D sensor.
1º Connect the pressure transmitter TDP-D (accessory) to the specific pressure taps there are in the heat recovery
unit. Ensure that pressure taps “+“ and “-“ of the pressure transmitter concides with those of the heat recovery
unit.
+
-
-
+
2º Perform the electrical connection and regulator configuration, following the instructions of the CONTROL AE-
RO-REG accessory.
3º Reconfigure the pressure transmitter. So that the regulation is correct and the transmitters correctly visualize
the airflow, it is necessary that it is configured to work in airflow mode with a range of 9,999 m
3
/h.
Adjustment to work in airflow mode
The selection between pressure and airflow is made by the DIP3(SW1) micro switch existing inside the micro
switch. Fix the micro switch in ON position.
Summary of Contents for CAD-COMPACT 500
Page 1: ...EN CAD COMPACT ECOWATT...
